Systems Engineer

Job Description: 

Leidos has a new and exciting opportunity for a Systems Engineer I in our Intelligence Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. 

At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! 

Program Summary 

Leidos supports critical missions within the Directorate of Operations and Directorate of Cybersecurity, delivering systems engineering solutions that enable cryptanalysis, foreign intelligence operations, and protection of National Security Systems. Our team explores, designs, and integrates emerging technologies to provide the nation with a decisive advantage over adversaries. 

Job Summary 

We're seeking a Systems Engineer I to perform requirements analysis, solution design, and systems integration for cryptologic and cybersecurity missions. You'll develop technical architectures, conduct value modeling and analysis of alternatives, and support prototype development from concept through deployment in support of DO and CSD operations. 

Primary Responsibilities 

• Develop system requirements, CONOPs, and design documentation through stakeholder analysis and feasibility studies 

• Perform functional analysis and synthesis; conduct value modeling and risk analysis to identify optimal solutions 

• Develop Interface Control Documents (ICDs), data-flow diagrams, XML schemas, and metadata models 

• Plan and execute integration and testing of prototypes following NSA Test and Evaluation standards 

• Support hardware/software configuration management and troubleshooting of system failures 

• Coordinate knowledge transfer and facilitate adoption of new processes with stakeholders 

Qualifications 

• Bachelor's degree in Engineering plus 3 years of relevant experience, OR Master's degree in Engineering plus 1 year, OR Doctoral degree in Engineering 

• Alternatively: Bachelor's/Master's/Doctoral in Computer Science, Mathematics, or Physics with equivalent experience 

• For non-ABET programs: degree must include differential and integral calculus plus 5 of 18 specified technical areas* 

• Active TS/SCI clearance required 

• Experience with requirements analysis, system design, and integration activities 

• Ability to work in a SCIF environment and travel as needed 

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

October 2, 2026

Pay Range:

Pay Range $69,550.00 - $125,725.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.